Three horseshoes are tossed, and all are ringers on the center pole. is this accuracy or precision?

This is precision as you can look it up on google

1. and 2. question: in which equation? or i don't understand you, 3. a), 4. c), 5. c), 6. b), 7. d), 8. d) if small number is underlined(behind symbol) , b) if big number is underlined(in front of symbol)9. what is underlined there? 10. c)